Caffeine
Caffeine anhydrousCoffee extract
Hair Stimulant
Caffeine is a natural substance often found in coffee and tea that can wake up your body. When put into hair products, it's thought to help make your hair stronger and encourage it to grow.
Low Concern
Source: Cosmetic Ingredient Review (CIR)
When applied topically in hair products, caffeine is generally considered safe and well-tolerated, with minimal risk of systemic absorption.
No result found for this ingredient.
r/tressless
226
The Golden Hair Regrowth/Loss Prevention Regimen With Results and Explanation
Caffeine Supplementation and Hair: A Systematic Review.
Ly N, Paiewonsky B, Fruechte S
2025
Read on PubMedLast updated: May 16, 2026